ProofLens — Invisible Proof for Images

Add a tiny verified credit-line — click to see creator and verify file integrity.
No on-image overlays. Paste two lines.

Live demo • Verify tool • Site

---

Why it matters

• Credit that travels — creators get visible attribution (caption chip) without changing editor workflow.
• Integrity you can click — SHA-256 of the exact file; if bytes change, it fails.
• Zero-step for editors — one-time header install; auto-link manifests (plugin/edge planned).

What’s inside

• site/ — Netlify demo pages (caption-mode, header-only)
• docs/ — architecture, manifest schema, security, roadmap
• examples/ — 2-line snippets + sample manifest

Related repos

• Verify widget (browser): https://github.com/ProofLens/prooflens-verify-widget
• Signer CLI (Python): https://github.com/ProofLens/prooflens-signer

1-minute quickstart

<!-- caption-mode (no overlay) -->
<script src="https://prooflens.netlify.app/assets/prooflens-verify-lite.js"></script>

<figure>
  <img src="/path/photo.jpg"
       data-manifest-url="/path/photo.jpg.manifest.json"
       alt="">
  <figcaption class="credit">Photo: Your Name</figcaption>
</figure>
How it works
A small *.manifest.json stores sha256, creator, and created_at.

The browser (WebCrypto) hashes the displayed image and compares to the manifest.

Match ⇒ ✓ verified; mismatch ⇒ check failed.

Roadmap
WordPress Auto-CR (one-time install; auto-manifests on upload)

Edge auto-manifest (Netlify/Cloudflare) with Link: rel="content-credentials"

Trust dashboard + DMCA evidence bundle

License
MIT